Bank chief John Stumpf takes "full responsibility" for fraudulent sales practices; U.S. companies stash record $2.5T in cash overseas; and Kmart shutters more stores. These headlines and more from CBS MoneyWatch.

Traditionally, Warren Buffett likes to have $20 billion on hand to invest for "hunting elephants" at Berkshire Hathaway, but large acquisitions have been so few and far between in the last year that Berkshire has $40 billion on hand...